652 lines
24 KiB
Python
652 lines
24 KiB
Python
import logging
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import asyncio
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from binascii import hexlify
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from concurrent.futures.thread import ThreadPoolExecutor
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from typing import Tuple, List, Union, Callable, Any, Awaitable, Iterable, Dict, Optional
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import sqlite3
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from lbry.wallet.client.basetransaction import BaseTransaction, TXRefImmutable
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from lbry.wallet.client.bip32 import PubKey
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log = logging.getLogger(__name__)
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sqlite3.enable_callback_tracebacks(True)
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class AIOSQLite:
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def __init__(self):
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# has to be single threaded as there is no mapping of thread:connection
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self.executor = ThreadPoolExecutor(max_workers=1)
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self.connection: sqlite3.Connection = None
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self._closing = False
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self.query_count = 0
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@classmethod
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async def connect(cls, path: Union[bytes, str], *args, **kwargs):
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sqlite3.enable_callback_tracebacks(True)
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def _connect():
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return sqlite3.connect(path, *args, **kwargs)
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db = cls()
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db.connection = await asyncio.get_event_loop().run_in_executor(db.executor, _connect)
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return db
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async def close(self):
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if self._closing:
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return
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self._closing = True
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await asyncio.get_event_loop().run_in_executor(self.executor, self.connection.close)
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self.executor.shutdown(wait=True)
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self.connection = None
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def executemany(self, sql: str, params: Iterable):
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params = params if params is not None else []
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# this fetchall is needed to prevent SQLITE_MISUSE
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return self.run(lambda conn: conn.executemany(sql, params).fetchall())
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def executescript(self, script: str) -> Awaitable:
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return self.run(lambda conn: conn.executescript(script))
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def execute_fetchall(self, sql: str, parameters: Iterable = None) -> Awaitable[Iterable[sqlite3.Row]]:
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parameters = parameters if parameters is not None else []
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return self.run(lambda conn: conn.execute(sql, parameters).fetchall())
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def execute_fetchone(self, sql: str, parameters: Iterable = None) -> Awaitable[Iterable[sqlite3.Row]]:
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parameters = parameters if parameters is not None else []
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return self.run(lambda conn: conn.execute(sql, parameters).fetchone())
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def execute(self, sql: str, parameters: Iterable = None) -> Awaitable[sqlite3.Cursor]:
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parameters = parameters if parameters is not None else []
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return self.run(lambda conn: conn.execute(sql, parameters))
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def run(self, fun, *args, **kwargs) -> Awaitable:
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return asyncio.get_event_loop().run_in_executor(
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self.executor, lambda: self.__run_transaction(fun, *args, **kwargs)
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)
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def __run_transaction(self, fun: Callable[[sqlite3.Connection, Any, Any], Any], *args, **kwargs):
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self.connection.execute('begin')
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try:
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self.query_count += 1
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result = fun(self.connection, *args, **kwargs) # type: ignore
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self.connection.commit()
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return result
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except (Exception, OSError) as e:
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log.exception('Error running transaction:', exc_info=e)
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self.connection.rollback()
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log.warning("rolled back")
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raise
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def run_with_foreign_keys_disabled(self, fun, *args, **kwargs) -> Awaitable:
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return asyncio.get_event_loop().run_in_executor(
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self.executor, self.__run_transaction_with_foreign_keys_disabled, fun, args, kwargs
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)
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def __run_transaction_with_foreign_keys_disabled(self,
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fun: Callable[[sqlite3.Connection, Any, Any], Any],
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args, kwargs):
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foreign_keys_enabled, = self.connection.execute("pragma foreign_keys").fetchone()
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if not foreign_keys_enabled:
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raise sqlite3.IntegrityError("foreign keys are disabled, use `AIOSQLite.run` instead")
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try:
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self.connection.execute('pragma foreign_keys=off').fetchone()
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return self.__run_transaction(fun, *args, **kwargs)
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finally:
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self.connection.execute('pragma foreign_keys=on').fetchone()
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def constraints_to_sql(constraints, joiner=' AND ', prepend_key=''):
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sql, values = [], {}
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for key, constraint in constraints.items():
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tag = '0'
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if '#' in key:
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key, tag = key[:key.index('#')], key[key.index('#')+1:]
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col, op, key = key, '=', key.replace('.', '_')
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if not key:
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sql.append(constraint)
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continue
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if key.startswith('$'):
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values[key] = constraint
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continue
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if key.endswith('__not'):
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col, op = col[:-len('__not')], '!='
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elif key.endswith('__is_null'):
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col = col[:-len('__is_null')]
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sql.append(f'{col} IS NULL')
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continue
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if key.endswith('__is_not_null'):
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col = col[:-len('__is_not_null')]
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sql.append(f'{col} IS NOT NULL')
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continue
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if key.endswith('__lt'):
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col, op = col[:-len('__lt')], '<'
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elif key.endswith('__lte'):
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col, op = col[:-len('__lte')], '<='
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elif key.endswith('__gt'):
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col, op = col[:-len('__gt')], '>'
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elif key.endswith('__gte'):
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col, op = col[:-len('__gte')], '>='
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elif key.endswith('__like'):
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col, op = col[:-len('__like')], 'LIKE'
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elif key.endswith('__not_like'):
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col, op = col[:-len('__not_like')], 'NOT LIKE'
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elif key.endswith('__in') or key.endswith('__not_in'):
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if key.endswith('__in'):
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col, op = col[:-len('__in')], 'IN'
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else:
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col, op = col[:-len('__not_in')], 'NOT IN'
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if constraint:
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if isinstance(constraint, (list, set, tuple)):
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keys = []
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for i, val in enumerate(constraint):
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keys.append(f':{key}{tag}_{i}')
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values[f'{key}{tag}_{i}'] = val
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sql.append(f'{col} {op} ({", ".join(keys)})')
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elif isinstance(constraint, str):
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sql.append(f'{col} {op} ({constraint})')
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else:
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raise ValueError(f"{col} requires a list, set or string as constraint value.")
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continue
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elif key.endswith('__any') or key.endswith('__or'):
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where, subvalues = constraints_to_sql(constraint, ' OR ', key+tag+'_')
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sql.append(f'({where})')
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values.update(subvalues)
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continue
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if key.endswith('__and'):
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where, subvalues = constraints_to_sql(constraint, ' AND ', key+tag+'_')
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sql.append(f'({where})')
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values.update(subvalues)
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continue
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sql.append(f'{col} {op} :{prepend_key}{key}{tag}')
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values[prepend_key+key+tag] = constraint
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return joiner.join(sql) if sql else '', values
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def query(select, **constraints) -> Tuple[str, Dict[str, Any]]:
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sql = [select]
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limit = constraints.pop('limit', None)
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offset = constraints.pop('offset', None)
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order_by = constraints.pop('order_by', None)
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accounts = constraints.pop('accounts', [])
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if accounts:
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constraints['account__in'] = [a.public_key.address for a in accounts]
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where, values = constraints_to_sql(constraints)
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if where:
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sql.append('WHERE')
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sql.append(where)
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if order_by:
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sql.append('ORDER BY')
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if isinstance(order_by, str):
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sql.append(order_by)
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elif isinstance(order_by, list):
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sql.append(', '.join(order_by))
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else:
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raise ValueError("order_by must be string or list")
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if limit is not None:
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sql.append(f'LIMIT {limit}')
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if offset is not None:
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sql.append(f'OFFSET {offset}')
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return ' '.join(sql), values
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def interpolate(sql, values):
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for k in sorted(values.keys(), reverse=True):
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value = values[k]
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if isinstance(value, bytes):
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value = f"X'{hexlify(value).decode()}'"
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elif isinstance(value, str):
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value = f"'{value}'"
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else:
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value = str(value)
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sql = sql.replace(f":{k}", value)
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return sql
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def rows_to_dict(rows, fields):
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if rows:
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return [dict(zip(fields, r)) for r in rows]
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else:
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return []
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class SQLiteMixin:
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SCHEMA_VERSION: Optional[str] = None
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CREATE_TABLES_QUERY: str
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MAX_QUERY_VARIABLES = 900
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CREATE_VERSION_TABLE = """
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create table if not exists version (
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version text
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);
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"""
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def __init__(self, path):
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self._db_path = path
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self.db: AIOSQLite = None
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self.ledger = None
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async def open(self):
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log.info("connecting to database: %s", self._db_path)
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self.db = await AIOSQLite.connect(self._db_path, isolation_level=None)
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if self.SCHEMA_VERSION:
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tables = [t[0] for t in await self.db.execute_fetchall(
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"SELECT name FROM sqlite_master WHERE type='table';"
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)]
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if tables:
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if 'version' in tables:
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version = await self.db.execute_fetchone("SELECT version FROM version LIMIT 1;")
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if version == (self.SCHEMA_VERSION,):
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return
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await self.db.executescript('\n'.join(
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f"DROP TABLE {table};" for table in tables
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))
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await self.db.execute(self.CREATE_VERSION_TABLE)
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await self.db.execute("INSERT INTO version VALUES (?)", (self.SCHEMA_VERSION,))
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await self.db.executescript(self.CREATE_TABLES_QUERY)
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async def close(self):
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await self.db.close()
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@staticmethod
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def _insert_sql(table: str, data: dict, ignore_duplicate: bool = False,
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replace: bool = False) -> Tuple[str, List]:
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columns, values = [], []
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for column, value in data.items():
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columns.append(column)
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values.append(value)
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policy = ""
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if ignore_duplicate:
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policy = " OR IGNORE"
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if replace:
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policy = " OR REPLACE"
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sql = "INSERT{} INTO {} ({}) VALUES ({})".format(
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policy, table, ', '.join(columns), ', '.join(['?'] * len(values))
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)
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return sql, values
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@staticmethod
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def _update_sql(table: str, data: dict, where: str,
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constraints: Union[list, tuple]) -> Tuple[str, list]:
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columns, values = [], []
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for column, value in data.items():
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columns.append(f"{column} = ?")
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values.append(value)
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values.extend(constraints)
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sql = "UPDATE {} SET {} WHERE {}".format(
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table, ', '.join(columns), where
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)
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return sql, values
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class BaseDatabase(SQLiteMixin):
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SCHEMA_VERSION = "1.1"
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PRAGMAS = """
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pragma journal_mode=WAL;
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"""
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CREATE_ACCOUNT_TABLE = """
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create table if not exists account_address (
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account text not null,
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address text not null,
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chain integer not null,
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pubkey blob not null,
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chain_code blob not null,
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n integer not null,
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depth integer not null,
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primary key (account, address)
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);
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create index if not exists address_account_idx on account_address (address, account);
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"""
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CREATE_PUBKEY_ADDRESS_TABLE = """
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create table if not exists pubkey_address (
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address text primary key,
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history text,
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used_times integer not null default 0
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);
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"""
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CREATE_TX_TABLE = """
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create table if not exists tx (
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txid text primary key,
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raw blob not null,
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height integer not null,
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position integer not null,
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is_verified boolean not null default 0
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);
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"""
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CREATE_TXO_TABLE = """
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create table if not exists txo (
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txid text references tx,
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txoid text primary key,
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address text references pubkey_address,
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position integer not null,
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amount integer not null,
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script blob not null,
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is_reserved boolean not null default 0
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);
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create index if not exists txo_address_idx on txo (address);
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"""
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CREATE_TXI_TABLE = """
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create table if not exists txi (
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txid text references tx,
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txoid text references txo,
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address text references pubkey_address
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);
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create index if not exists txi_address_idx on txi (address);
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create index if not exists txi_txoid_idx on txi (txoid);
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"""
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CREATE_TABLES_QUERY = (
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PRAGMAS +
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CREATE_ACCOUNT_TABLE +
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CREATE_PUBKEY_ADDRESS_TABLE +
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CREATE_TX_TABLE +
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CREATE_TXO_TABLE +
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CREATE_TXI_TABLE
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)
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@staticmethod
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def txo_to_row(tx, address, txo):
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return {
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'txid': tx.id,
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'txoid': txo.id,
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'address': address,
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'position': txo.position,
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'amount': txo.amount,
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'script': sqlite3.Binary(txo.script.source)
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}
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@staticmethod
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def tx_to_row(tx):
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return {
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'txid': tx.id,
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'raw': sqlite3.Binary(tx.raw),
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'height': tx.height,
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'position': tx.position,
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'is_verified': tx.is_verified
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}
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async def insert_transaction(self, tx):
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await self.db.execute_fetchall(*self._insert_sql('tx', self.tx_to_row(tx)))
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async def update_transaction(self, tx):
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await self.db.execute_fetchall(*self._update_sql("tx", {
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'height': tx.height, 'position': tx.position, 'is_verified': tx.is_verified
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}, 'txid = ?', (tx.id,)))
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def _transaction_io(self, conn: sqlite3.Connection, tx: BaseTransaction, address, txhash, history):
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conn.execute(*self._insert_sql('tx', self.tx_to_row(tx), replace=True))
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for txo in tx.outputs:
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if txo.script.is_pay_pubkey_hash and txo.pubkey_hash == txhash:
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conn.execute(*self._insert_sql(
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"txo", self.txo_to_row(tx, address, txo), ignore_duplicate=True
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)).fetchall()
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elif txo.script.is_pay_script_hash:
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# TODO: implement script hash payments
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log.warning('Database.save_transaction_io: pay script hash is not implemented!')
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for txi in tx.inputs:
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if txi.txo_ref.txo is not None:
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txo = txi.txo_ref.txo
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if txo.has_address and txo.get_address(self.ledger) == address:
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conn.execute(*self._insert_sql("txi", {
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'txid': tx.id,
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'txoid': txo.id,
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'address': address,
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}, ignore_duplicate=True)).fetchall()
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conn.execute(
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"UPDATE pubkey_address SET history = ?, used_times = ? WHERE address = ?",
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(history, history.count(':') // 2, address)
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)
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def save_transaction_io(self, tx: BaseTransaction, address, txhash, history):
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return self.db.run(self._transaction_io, tx, address, txhash, history)
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def save_transaction_io_batch(self, txs: Iterable[BaseTransaction], address, txhash, history):
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def __many(conn):
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for tx in txs:
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self._transaction_io(conn, tx, address, txhash, history)
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return self.db.run(__many)
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async def reserve_outputs(self, txos, is_reserved=True):
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txoids = ((is_reserved, txo.id) for txo in txos)
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await self.db.executemany("UPDATE txo SET is_reserved = ? WHERE txoid = ?", txoids)
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async def release_outputs(self, txos):
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await self.reserve_outputs(txos, is_reserved=False)
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async def rewind_blockchain(self, above_height): # pylint: disable=no-self-use
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# TODO:
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# 1. delete transactions above_height
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# 2. update address histories removing deleted TXs
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return True
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async def select_transactions(self, cols, accounts=None, **constraints):
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if not {'txid', 'txid__in'}.intersection(constraints):
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assert accounts, "'accounts' argument required when no 'txid' constraint is present"
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constraints.update({
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f'$account{i}': a.public_key.address for i, a in enumerate(accounts)
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})
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account_values = ', '.join([f':$account{i}' for i in range(len(accounts))])
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where = f" WHERE account_address.account IN ({account_values})"
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constraints['txid__in'] = f"""
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SELECT txo.txid FROM txo JOIN account_address USING (address) {where}
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UNION
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SELECT txi.txid FROM txi JOIN account_address USING (address) {where}
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"""
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return await self.db.execute_fetchall(
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*query(f"SELECT {cols} FROM tx", **constraints)
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)
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async def get_transactions(self, wallet=None, **constraints):
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tx_rows = await self.select_transactions(
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'txid, raw, height, position, is_verified',
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order_by=constraints.pop('order_by', ["height=0 DESC", "height DESC", "position DESC"]),
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**constraints
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)
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if not tx_rows:
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return []
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txids, txs, txi_txoids = [], [], []
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for row in tx_rows:
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txids.append(row[0])
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txs.append(self.ledger.transaction_class(
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raw=row[1], height=row[2], position=row[3], is_verified=bool(row[4])
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))
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for txi in txs[-1].inputs:
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txi_txoids.append(txi.txo_ref.id)
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step = self.MAX_QUERY_VARIABLES
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annotated_txos = {}
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for offset in range(0, len(txids), step):
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annotated_txos.update({
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txo.id: txo for txo in
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(await self.get_txos(
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wallet=wallet,
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txid__in=txids[offset:offset+step],
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))
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})
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referenced_txos = {}
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for offset in range(0, len(txi_txoids), step):
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referenced_txos.update({
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txo.id: txo for txo in
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(await self.get_txos(
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wallet=wallet,
|
|
txoid__in=txi_txoids[offset:offset+step],
|
|
))
|
|
})
|
|
|
|
for tx in txs:
|
|
for txi in tx.inputs:
|
|
txo = referenced_txos.get(txi.txo_ref.id)
|
|
if txo:
|
|
txi.txo_ref = txo.ref
|
|
for txo in tx.outputs:
|
|
_txo = annotated_txos.get(txo.id)
|
|
if _txo:
|
|
txo.update_annotations(_txo)
|
|
else:
|
|
txo.update_annotations(None)
|
|
|
|
return txs
|
|
|
|
async def get_transaction_count(self, **constraints):
|
|
constraints.pop('wallet', None)
|
|
constraints.pop('offset', None)
|
|
constraints.pop('limit', None)
|
|
constraints.pop('order_by', None)
|
|
count = await self.select_transactions('count(*)', **constraints)
|
|
return count[0][0]
|
|
|
|
async def get_transaction(self, **constraints):
|
|
txs = await self.get_transactions(limit=1, **constraints)
|
|
if txs:
|
|
return txs[0]
|
|
|
|
async def select_txos(self, cols, **constraints):
|
|
sql = f"SELECT {cols} FROM txo JOIN tx USING (txid)"
|
|
if 'accounts' in constraints:
|
|
sql += " JOIN account_address USING (address)"
|
|
return await self.db.execute_fetchall(*query(sql, **constraints))
|
|
|
|
async def get_txos(self, wallet=None, no_tx=False, **constraints):
|
|
my_accounts = {a.public_key.address for a in wallet.accounts} if wallet else set()
|
|
if 'order_by' not in constraints:
|
|
constraints['order_by'] = [
|
|
"tx.height=0 DESC", "tx.height DESC", "tx.position DESC", "txo.position"
|
|
]
|
|
rows = await self.select_txos(
|
|
"""
|
|
tx.txid, raw, tx.height, tx.position, tx.is_verified, txo.position, amount, script, (
|
|
select group_concat(account||"|"||chain) from account_address
|
|
where account_address.address=txo.address
|
|
)
|
|
""",
|
|
**constraints
|
|
)
|
|
txos = []
|
|
txs = {}
|
|
output_class = self.ledger.transaction_class.output_class
|
|
for row in rows:
|
|
if no_tx:
|
|
txo = output_class(
|
|
amount=row[6],
|
|
script=output_class.script_class(row[7]),
|
|
tx_ref=TXRefImmutable.from_id(row[0], row[2]),
|
|
position=row[5]
|
|
)
|
|
else:
|
|
if row[0] not in txs:
|
|
txs[row[0]] = self.ledger.transaction_class(
|
|
row[1], height=row[2], position=row[3], is_verified=row[4]
|
|
)
|
|
txo = txs[row[0]].outputs[row[5]]
|
|
row_accounts = dict(a.split('|') for a in row[8].split(','))
|
|
account_match = set(row_accounts) & my_accounts
|
|
if account_match:
|
|
txo.is_my_account = True
|
|
txo.is_change = row_accounts[account_match.pop()] == '1'
|
|
else:
|
|
txo.is_change = txo.is_my_account = False
|
|
txos.append(txo)
|
|
return txos
|
|
|
|
async def get_txo_count(self, **constraints):
|
|
constraints.pop('wallet', None)
|
|
constraints.pop('offset', None)
|
|
constraints.pop('limit', None)
|
|
constraints.pop('order_by', None)
|
|
count = await self.select_txos('count(*)', **constraints)
|
|
return count[0][0]
|
|
|
|
@staticmethod
|
|
def constrain_utxo(constraints):
|
|
constraints['is_reserved'] = False
|
|
constraints['txoid__not_in'] = "SELECT txoid FROM txi"
|
|
|
|
def get_utxos(self, **constraints):
|
|
self.constrain_utxo(constraints)
|
|
return self.get_txos(**constraints)
|
|
|
|
def get_utxo_count(self, **constraints):
|
|
self.constrain_utxo(constraints)
|
|
return self.get_txo_count(**constraints)
|
|
|
|
async def get_balance(self, wallet=None, accounts=None, **constraints):
|
|
assert wallet or accounts, \
|
|
"'wallet' or 'accounts' constraints required to calculate balance"
|
|
constraints['accounts'] = accounts or wallet.accounts
|
|
self.constrain_utxo(constraints)
|
|
balance = await self.select_txos('SUM(amount)', **constraints)
|
|
return balance[0][0] or 0
|
|
|
|
async def select_addresses(self, cols, **constraints):
|
|
return await self.db.execute_fetchall(*query(
|
|
f"SELECT {cols} FROM pubkey_address JOIN account_address USING (address)",
|
|
**constraints
|
|
))
|
|
|
|
async def get_addresses(self, cols=None, **constraints):
|
|
cols = cols or (
|
|
'address', 'account', 'chain', 'history', 'used_times',
|
|
'pubkey', 'chain_code', 'n', 'depth'
|
|
)
|
|
addresses = rows_to_dict(await self.select_addresses(', '.join(cols), **constraints), cols)
|
|
if 'pubkey' in cols:
|
|
for address in addresses:
|
|
address['pubkey'] = PubKey(
|
|
self.ledger, address.pop('pubkey'), address.pop('chain_code'),
|
|
address.pop('n'), address.pop('depth')
|
|
)
|
|
return addresses
|
|
|
|
async def get_address_count(self, cols=None, **constraints):
|
|
count = await self.select_addresses('count(*)', **constraints)
|
|
return count[0][0]
|
|
|
|
async def get_address(self, **constraints):
|
|
addresses = await self.get_addresses(limit=1, **constraints)
|
|
if addresses:
|
|
return addresses[0]
|
|
|
|
async def add_keys(self, account, chain, pubkeys):
|
|
await self.db.executemany(
|
|
"insert or ignore into account_address "
|
|
"(account, address, chain, pubkey, chain_code, n, depth) values "
|
|
"(?, ?, ?, ?, ?, ?, ?)", ((
|
|
account.id, k.address, chain,
|
|
sqlite3.Binary(k.pubkey_bytes),
|
|
sqlite3.Binary(k.chain_code),
|
|
k.n, k.depth
|
|
) for k in pubkeys)
|
|
)
|
|
await self.db.executemany(
|
|
"insert or ignore into pubkey_address (address) values (?)",
|
|
((pubkey.address,) for pubkey in pubkeys)
|
|
)
|
|
|
|
async def _set_address_history(self, address, history):
|
|
await self.db.execute_fetchall(
|
|
"UPDATE pubkey_address SET history = ?, used_times = ? WHERE address = ?",
|
|
(history, history.count(':')//2, address)
|
|
)
|
|
|
|
async def set_address_history(self, address, history):
|
|
await self._set_address_history(address, history)
|